import java.util.Scanner;

/**
 * 学英语
 * Created by JiaJia on 2019/6/26 0026.
 */
public class HuaWei035 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            int n = scanner.nextInt();
        }

        scanner.close();
    }
}